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Method for preparing salt-tolerance monascus pigment

A technology of monascus pigment and salt tolerance, which is applied in the field of preparation of salt tolerance monascus pigment, can solve problems such as poor salt tolerance, and achieve the effects of improving application adaptability, solubility and stability

Active Publication Date: 2015-12-16
GUANGDONG TIANYI BIOTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of poor salt tolerance of monascus pigments in the prior art, the present invention provides a preparation method of salt tolerance monascus pigments, which can effectively improve the salt tolerance of monascus pigments, thereby improving its use in food Industrial use suitability

Method used

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  • Method for preparing salt-tolerance monascus pigment

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Embodiment 1

[0031] The preparation method of a kind of salt-tolerant monascus pigment of the present embodiment comprises the following steps:

[0032] S1. Stir and react 10 parts of Monascus pigment, 40 parts of ethanol, 60 parts of water, and 2 parts of sodium hydroxide at a temperature of 40°C for 1 hour, and let stand for 0.5 hours after the reaction;

[0033] S2. Add 25 parts of Tween-20 emulsifier to the product obtained in step S1 to carry out emulsification reaction, react at a rotating speed of 1500r / min for 0.5h, make the combination of emulsifier and monascus pigment stable, and let stand for 20min after the reaction;

[0034] S3. Add 20 parts of stabilizer propylene glycol to the product obtained in step S2 for high-pressure homogenization treatment at a temperature of 30°C for 20 minutes; then concentrate and separate ethanol and water at a temperature of 40~60°C and a vacuum of -0.08~ -0.095MPa, the Brix is ​​20~40Bx; and then spray-dried at a temperature of 70~100°C to obta...

Embodiment 2

[0036] The preparation method of a kind of salt-tolerant monascus pigment of the present embodiment comprises the following steps:

[0037] S1. Stir and react 10 parts of Monascus pigment, 50 parts of ethanol, 50 parts of water, and 3 parts of sodium hydroxide at a temperature of 45°C for 80 minutes, and let stand for 0.5 hours after the reaction;

[0038] S2. Add 30 parts of Tween-60 emulsifier to the product obtained in step S1 to carry out emulsification reaction, react at a rotating speed of 2000r / min for 0.5h, make the combination of emulsifier and monascus pigment stable, and let stand for 20min after the reaction;

[0039] S3. Add 25 parts of stabilizer propylene glycol to the product obtained in step S2 for high-pressure homogenization treatment at a temperature of 40°C for 15 minutes; then concentrate and separate ethanol and water at a temperature of 40~60°C and a vacuum of -0.08~ -0.095MPa, the Brix is ​​20~40Bx; and then spray-dried at a temperature of 70~100°C to ...

Embodiment 3

[0041] The preparation method of a kind of salt-tolerant monascus pigment of the present embodiment comprises the following steps:

[0042] S1. Stir and react 15 parts of Monascus pigment, 60 parts of ethanol, 60 parts of water, and 4 parts of sodium hydroxide at a temperature of 45°C for 120 minutes, and let stand for 0.5 hours after the reaction;

[0043] S2. Add 40 parts of Tween-80 emulsifier to the product obtained in step S1 to carry out emulsification reaction, react at a rotating speed of 3000r / min for 40min, make the combination of emulsifier and monascus pigment stable, and let stand for 20min after the reaction;

[0044] S3. Add 30 parts of stabilizer glycerin to the product obtained in step S2 for high-pressure homogenization treatment at a temperature of 35°C for 30 minutes; then concentrate and separate ethanol and water at a temperature of 40-60°C and a vacuum of - 0.08~-0.095MPa, brix 20~40Bx; then spray drying at 70~100°C to obtain a salt-tolerant monascus pig...

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Abstract

The invention belongs to the field of food industry, and in particular discloses a method for preparing salt-tolerance monascus pigment. The method comprises the following steps: 1, mixing 10-30 parts of monascus pigment, 40-90 parts of ethanol, 50-120 parts of water and 1-10 parts of sodium hydroxide for alkaline hydrolysis reaction; 2, adding 20-80 parts of an emulsifier into the product obtained in the step 1 for emulsion reaction, thereby stably combining the emulsifier with the monascus pigment; and 3, adding 20-40 parts of a stabilizer into the product obtained in the step 2 for homogenization treatment, and further concentrating and drying, thereby obtaining a salt-tolerance monascus pigment powder product. By adopting the method, the dissolubility and stability of the monascus pigment in a high salt environment can be effectively improved, so that the use applicability of the monascus pigment in the food industry can be improved.

Description

technical field [0001] The invention belongs to the field of food industry, and in particular relates to a preparation method of salt-tolerant monascus pigment. Background technique [0002] In the prior art, the sources of natural pigments mainly include plant extraction, animal extraction and microbial fermentation. Monascus pigment is a high-quality natural food pigment fermented by filamentous fungi of the genus Monascus. It is a secondary metabolite of Monascus. With rice and soybeans as the main raw materials, the metabolites obtained through liquid submerged fermentation of Monascus bacterium, and then refined and extracted to obtain natural pigments, the raw materials are sufficient and easy to obtain, and can be produced on a large scale. [0003] Monascus pigment has a variety of pigment components. Generally, the crude product contains 18 components. The six components whose structure has been determined are Panhong, Mengnahong, Mengnayuhong, Ankaflavin, Panhonga...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B61/00A23L1/275
Inventor 谢凤娇胡文林尚学平司璐
Owner GUANGDONG TIANYI BIOTECH CO LTD
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